Python 调用 Outlook 发送邮件过程解析

import win32com.client as win32
def send_mail():
  outlook = win32.Dispatch('Outlook.Application')
  mail_item = outlook.CreateItem(0) # 0: olMailItem
  mail_item.Recipients.Add('someone@qq.com')
  mail_item.Subject = 'Mail Test'
  mail_item.BodyFormat = 2     # 2: Html format
  mail_item.HTMLBody = '''
    <H2>Hello, This is a test mail.</H2>
    Hello Guys. 
    '''
  mail_item.Send()
if __name__ == '__main__':
  send_mail()

def send_mail():
  outlook_app = win32.Dispatch('Outlook.Application')
  # choose sender account
  send_account = None
  for account in outlook_app.Session.Accounts:
    if account.DisplayName == 'sender@hotmail.com':
      send_account = account
      break
  mail_item = outlook_app.CreateItem(0)  # 0: olMailItem
  # mail_item.SendUsingAccount = send_account not working
  # the following statement performs the function instead
  mail_item._oleobj_.Invoke(*(64209, 0, 8, 0, send_account))
  mail_item.Recipients.Add('receipient@qq.com')
  mail_item.Subject = 'Test sending using particular account'
  mail_item.BodyFormat = 2  # 2: Html format
  mail_item.HTMLBody = '''
    <H2>Hello, This is a test mail.</H2>
    Hello Guys. 
    '''
  mail_item.Send()
if __name__ == '__main__':
  send_mail()

import win32com.client as win32
def print_outlook_accounts():
  outlook_app = win32.Dispatch('Outlook.Application')
  for account in outlook_app.Session.Accounts:
    print (account.DeliveryStore.DisplayName)
if __name__ == '__main__':
  send_mail()

Public Sub Print_Outlook_Accounts()
  ' 工具 -> 引用：添加 Microsoft Outook Object Library 引用  
  Dim outlookApp As New Outlook.Application
  Dim accounts As Outlook.accounts  
  Set accounts = outlookApp.Session.accounts  
  Dim account As Outlook.account
  For Each account In accounts
    Debug.Print account.DisplayName
  Next
End Sub